nvkm_mc_unk260
void nvkm_mc_unk260(struct nvkm_device *, u32 data);
nvkm_mc_unk260(device, 0);
nvkm_mc_unk260(device, 1);
nvkm_mc_unk260(device, 0);
nvkm_mc_unk260(device, 1);
nvkm_mc_unk260(device, 0);
nvkm_mc_unk260(device, 1);